LAS VEGAS — Utah has taken down two higher seeds in the Pac-12 tournament. Two more, and the Utes’ postseason will continue. Jarred DuBois scored 21 points and hit a tying 3-pointer in the closing seconds of regulation, Jordan Loveridge scored eight of his 20 points in overtime, and Utah upset second-seeded California 79-69 in the Pac-12 tournament quarterfinals Friday night. “A lot of times, if you watch basketball at all levels, the team that plays the hardest usually wins,” Utah coach Larry Krystkowiak said. “So I think that’s what we’re doing right now. We’re playing with some confidence. We’ve …